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Zhang X, Hu H, Qie Y, Lin L, Guo T, Li F. Boosting the Efficiency of High-Resolution Quantum Dot Light-Emitting Devices Based on Localized Surface Plasmon Resonance. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38416428 DOI: 10.1021/acsami.3c17786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
With pixel miniaturization, the performance of high-resolution quantum dot light-emitting diodes (QLEDs) usually degrades. Considering the dimension of ultrasmall pixels, herein, a barrier architecture based on localized surface plasmon resonance (LSPR) that promotes the radiative recombination of neighboring quantum dots is rationally designed to improve the device performance. Au nanoparticles (NPs) are embedded in an insulating polymer to form a honeycomb-patterned barrier layer via the nanoimprint process. Each pixel fabricated in the void area (average diameter of 1.5 μm) of the barrier layer is surrounded by a number of LSPR-NPs to enhance the luminescence. The resultant green QLEDs with a resolution of 9027 pixels per inch show a maximum external quantum efficiency of 11.1%, a 42.8% enhancement compared to the control device. Additionally, the lifetime of high-resolution QLEDs is obviously improved by the LSPR effect.
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Affiliation(s)
- Xu Zhang
- Institute of Optoelectronic Technology, Fuzhou University, Fuzhou 350116, P. R. China
| | - Hailong Hu
- Institute of Optoelectronic Technology, Fuzhou University, Fuzhou 350116, P. R. China
- Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, P. R. China
| | - Yuan Qie
- Institute of Optoelectronic Technology, Fuzhou University, Fuzhou 350116, P. R. China
| | - Lihua Lin
- Institute of Optoelectronic Technology, Fuzhou University, Fuzhou 350116, P. R. China
- Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, P. R. China
| | - Tailiang Guo
- Institute of Optoelectronic Technology, Fuzhou University, Fuzhou 350116, P. R. China
- Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, P. R. China
| | - Fushan Li
- Institute of Optoelectronic Technology, Fuzhou University, Fuzhou 350116, P. R. China
- Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, P. R. China
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Kim SK, Lee SH, Yoon SY, Jo DY, Kim HM, Kim Y, Park SM, Kim YH, Yang H. Localized surface plasmon-enhanced blue electroluminescent device based on ZnSeTe quantum dots and AuAg nanoparticles. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00448h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Localized surface plasmon resonance-enhanced Cd-free blue electroluminescent devices integrated with ZnSeTe quantum dots and AuAg alloy nanoparticles were demonstrated.
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Affiliation(s)
- Sun-Kyo Kim
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Korea
| | - Sun-Hyoung Lee
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Korea
| | - Suk-Young Yoon
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Korea
| | - Dae-Yeon Jo
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Korea
| | - Hyun-Min Kim
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Korea
| | - Yuri Kim
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Korea
| | - Seong Min Park
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Korea
| | - Yang-Hee Kim
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Korea
| | - Heesun Yang
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Korea
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Huang CL, Chen SH, Wu CY, Sie YS, Kao PC. Influence of the Silver Nanocrystal Shape on the Luminous Efficiency of Blue-Emitting Polymer Light-Emitting Diodes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:15114-15120. [PMID: 31675238 DOI: 10.1021/acs.langmuir.9b00816] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Truncated silver nanodecahedrons (TAgNDs) and truncated silver nanoplates (TAgNPs) fabricated via chemical reduction and photochemical methods were added to poly[3,4-ethylenedioxythiophene]:poly[styrenesulfonate] (PEDOT:PSS) as dopants to promote the luminous efficiency of blue-emitting polymer light-emitting diodes (PLEDs). The differences in shape between TAgNDs and TAgNPs result in better dispersion of TAgNDs in PEDOT:PSS. Therefore, at an optimal doping concentration (the distributed density in the light-emitting region is 6.88 μg cm-2 for TAgNDs and 5.16 μg cm-2 for TAgNPs), the average current efficacy and maximum electroluminescence intensity enhancement factor for TAgND-doped PLEDs were 4.18 cd A-1 and 420%, respectively, which are much higher than those for TAgNP-doped PLEDs (1.83 cd A-1 and 200%) at a luminescence wavelength of 440 nm.
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Chen SH, Shih YH, Li YR, Wei PK, Yu CF, Huang CY. Polymer LEDs with improved efficacy via periodic nanostructure-based aluminum. OPTICS LETTERS 2019; 44:4327-4330. [PMID: 31465394 DOI: 10.1364/ol.44.004327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 08/05/2019] [Indexed: 06/10/2023]
Abstract
Periodic aluminum-capped nanoslit arrays were produced on a polycarbonate plastic substrate by rapid hot embossing nanoimprint lithography and thermal evaporation, and they were used as a transparent window for blue-emitting polymer light-emitting diodes (PLEDs). The external quantum efficiency of blue-emitting PLEDs was enhanced by the surface plasmon polaritons of the periodic aluminum-capped nanoslit arrays. A maximum current efficiency of 4.84 cd/A was achieved for the proposed PLED, which was over 2.2 times that of the reference PLED (2.18 cd/A). These results demonstrate that periodic nanostructure can assist in the simple and low-cost fabrication of high-performance polymer optoelectronic devices.
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Wang L, Lin J, Hu Y, Guo X, Lv Y, Tang Z, Zhao J, Fan Y, Zhang N, Wang Y, Liu X. Blue Quantum Dot Light-Emitting Diodes with High Electroluminescent Efficiency. ACS APPLIED MATERIALS & INTERFACES 2017; 9:38755-38760. [PMID: 29039645 DOI: 10.1021/acsami.7b10785] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
High-efficiency blue CdSe/ZnS quantum dots (QDs) have been synthesized for display application with emission peak over 460 nm with the purpose of reducing the harmful effect of short-wavelength light to human eyes. To reach a better charge balance, different size ZnO nanoparticles (NPs) were synthesized and electrical properties of ZnO NPs were analyzed. Quantum dot light-emitting diodes (QLEDs) based on as-prepared blue QDs and optimized ZnO NPs have been successfully fabricated. Using small-size ZnO NPs, we have obtained a maximum current efficiency (CE) of 14.1 cd A-1 and a maximum external quantum efficiency (EQE) of 19.8% for QLEDs with an electroluminescence (EL) peak at 468 nm. To the best of our knowledge, this EQE is the highest value in comparison to the previous reports. The CIE 1931 color coordinates (0.136, 0.078) of this device are quite close to the standard (0.14, 0.08) of National Television System Committee (NTSC) 1953. The color saturation blue QLEDs show great promise for use in next-generation full-color displays.
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Affiliation(s)
- Lishuang Wang
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun, 130033 Jilin, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Jie Lin
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun, 130033 Jilin, China
| | - Yongsheng Hu
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun, 130033 Jilin, China
| | - Xiaoyang Guo
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun, 130033 Jilin, China
| | - Ying Lv
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun, 130033 Jilin, China
| | - Zhaobing Tang
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun, 130033 Jilin, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Jialong Zhao
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University , Siping, 136000 Jilin, China
| | - Yi Fan
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun, 130033 Jilin, China
| | - Nan Zhang
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun, 130033 Jilin, China
| | - Yunjun Wang
- Suzhou Xingshuo Nanotech Co., Ltd. (Mesolight) , Suzhou, 215123 Jiangsu, China
| | - Xingyuan Liu
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun, 130033 Jilin, China
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Flores JJ, Payne CK, Morris JD. Heme protein-mediated synthesis of PEDOT:PSS: enhancing conductivity by inhibiting heme degradation. RSC Adv 2017. [DOI: 10.1039/c7ra00887b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The conductivity of PEDOT:PSS synthesized with hemoglobin is enhanced if heme degradation is inhibited during synthesis.
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Affiliation(s)
- J. J. Flores
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
- Petit Institute for Bioengineering and Biosciences
| | - C. K. Payne
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
- Petit Institute for Bioengineering and Biosciences
| | - J. D. Morris
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
- Petit Institute for Bioengineering and Biosciences
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Song DH, Song SH, Shen TZ, Lee JS, Park WH, Kim SS, Song JK. Quantum dot light-emitting diodes using a graphene oxide/PEDOT:PSS bilayer as hole injection layer. RSC Adv 2017. [DOI: 10.1039/c7ra07948f] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Adoption of graphene oxide/PEDOT:PSS as a HIL layer dramatically improves the electro-optical performance of QLED devices.
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Affiliation(s)
- Dae-Ho Song
- School of Electronic and Electrical Engineering
- Sungkyunkwan University
- Suwon 440-746
- South Korea
- Display Laboratory
| | - Suk-Ho Song
- School of Electronic and Electrical Engineering
- Sungkyunkwan University
- Suwon 440-746
- South Korea
| | - Tian-Zi Shen
- School of Electronic and Electrical Engineering
- Sungkyunkwan University
- Suwon 440-746
- South Korea
| | - Jun-Seo Lee
- School of Electronic and Electrical Engineering
- Sungkyunkwan University
- Suwon 440-746
- South Korea
| | - Won-Hyeok Park
- School of Electronic and Electrical Engineering
- Sungkyunkwan University
- Suwon 440-746
- South Korea
| | - Sang-Soo Kim
- School of Electronic and Electrical Engineering
- Sungkyunkwan University
- Suwon 440-746
- South Korea
| | - Jang-Kun Song
- School of Electronic and Electrical Engineering
- Sungkyunkwan University
- Suwon 440-746
- South Korea
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